imagearc

Description

imagearc() draws a partial ellipse centered at cx, cy (top left is 0, 0) in the image represented by image. W and h specifies the ellipse's width and height respectively while the start and end points are specified in degrees indicated by the s and e arguments. 0° is located at the three-o'clock position, and the arc is drawn counter-clockwise.

<?php

// create a 200*200 image
$img = imagecreate(200, 200);

// allocate some colors
$white = imagecolorallocate($img, 255, 255, 255);
   
// draw a white circle 
imagearc($img, 100, 100, 150, 150, 0, 360, $white);

// output image in the browser
header("Content-type: image/png");
imagepng($img);
   
// free memory
imagedestroy($img);

 ?>

See also imageellipse(), imagefilledellipse(), and imagefilledarc().